Pixelworks PW1235 free download

File name PW1235 data sheet.pdf

PW1235 Product Specification General The PW1235 Video Signal Processor is a high quality, digital video signal processor that incorporates Pixelworks' patented, state-of-the-art video deinterlacer and scaler. Using sophisticated algorithms, the PW1235 is able to effectively deinterlace video input by creating motion vectors that follow frame-to-frame movement, and provide clear, progressive output in both analog and digital formats. With support for NTSC and PAL video formats, the PW1235 can be designed into any TV, monitor, or projector application. Support for 3:2 and 2:2 film mode detection enables the PW1235 to provide the best quality display for existing film and video standards. The PW1235 can dynamically enter or exit film mode (with flexible programming) to display mixed content with the best possible quality. As a single device, the PW1235 integrates many functions onto one chip. It has embedded a scaler, an advanced deinterlacer, memory controller, color space converter, and Digital-to-Analog Converter (DAC) onto one chip. There are two video input ports--a primary video port and a secondary input port--that are used to accept YUV video in the ITU-R601 and ITU-R656 formats respectively. Video content is analyzed on a single-pixel granularity to detect presence or absence of noise and compute the amount of motion. Motion video is processed using a highly intelligent algorithm that simultaneously eliminates noise and interpolates pixels along any angle to produce a noise-free picture without jagged-edge artifacts. As part of a Pixelworks solution, combining the PW1235 with a Pixelworks ImageProcessor (such as the PW113, PW166 or PW181) offers the world's best combination of deinterlacing and scaling of video or graphics. This combination of high quality deinterlacing and scaling is essential for higher resolution outputs such as XGA, SXGA, and UXGA that need to display NTSC and PAL video. Crystal Digital Out Video Video Decoder PW1235 Analog Out PW1235 System Block Diagram SDRAM Features · · · · · · · · · · · · · Motion-Adaptive Deinterlace Processor Intelligent Edge Deinterlacing Film Mode Detection (2:2 and 3:2 Pull-Down) Flexible Picture-in-Picture (PIP) Advanced Video Scaling Techniques Digital Color/Luminance Transient Improvement (DCTI/DLTI) Interlaced Video Input Options, including NTSC and PAL Frame Rate Conversion Color Space Converters Triple 10-Bit Digital-to-Analog Converter (DAC) Copy Protection Built-In Memory Controller Supports HDTV Applications · · · · · Flat-Panel (LCD, DLP) TVs LCD Multimedia Monitors Multimedia Projectors Progressive Scan CRT TVs Digital TVs Device PW1235 PW1235-L Application Up to XGA (720p) Package 256-pin PQFP NOTE: "L" denotes lead (Pb) free. 8100 SW Nyberg Road Tualatin, OR 97062 USA Telephone: 503.612.6700 FAX: 503.612.6713 www.pixelworks.com Copyright © 2003-2005 by Pixelworks, Inc. All rights reserved. Pixelworks owns all right, title and interest in the property and products descr